ISO Flange Bellows

ISO flange bellows, or often called ISO flexible couplings, have a length of flexible tubing with ISO flanges welded on both ends. The tube is hydroformed and tumble-finished.

Nor-Cal Products, Inc.

ISO Flexible Couplings

ISO flexible couplings or bellows with ISO non-rotatable multi fastener (ISO-MF) flanges on the ends. The bellows material comes standard in 316L stainless steel. Flanges material is 304 Stainless Steel. For increased corrosion resistance, the flanges are available in 316L Stainless as an option.

Vacuum range is >1 x 10E-8 Torr with an elastomer O-ring, or > 1 x 10E-11 Torr with a EVAC metal seal for ultra high vacuum.

Nominal Pipe SizeNumber of Rotatable FlangesBellows I.D.Wall ThicknessFree LengthCompressed LengthBellows MaterialFlange MaterialMfg. P/N.Encole P/N.Price
ISO-63No2.500 inch0.008 inch7.000 inch6.200 inchAISI 316LAISI 3042FC-ISO-250-4208A1000$321.40each
ISO-100No4.000 inch0.010 inch7.000 inch6.200 inchAISI 316LAISI 3042FC-ISO-400-4208A1002$440.00each
ISO-160No6.000 inch0.010 inch7.000 inch6.200 inchAISI 316LAISI 3042FC-ISO-600-4208A1003$650.45each
ISO-200No8.000 inch0.010 inch7.000 inch6.200 inchAISI 316LAISI 3042FC-ISO-800-4208A1004$1120.00each
ISO-80No2.500 inch0.008 inch7.000 inch6.200 inchAISI 316LAISI 3042FC-ISO-300-4208A1001$390.25each
ISO-250No10.000 inch0.012 inch13.500 inch11.400 inchAISI 316LAISI 3042FC-ISO-1000-10208A1005$1405.85each

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